Orchid plant Oncidium Heaven Scent ‘Sweet Baby’

ABSTRACT

A new variety of orchid plant of the Oncidiinae Intergenerics,  Oncidium , named  Oncidium  Heaven Scent ‘Sweet Baby’, distinguished particularly by a compact size, multiple spikes, sweet fragrance, many burgundy/pink flowers nicely shaped and arranged pleasingly on a panicle that grows quickly to sexual maturity.

The Latin name of the genus and grex of the plant claimed is Oncidium Heaven Scent.

Variety denomination:

The present invention comprises a new and distinct cultivar of Oncidium orchid, and hereinafter referred to by the cultivar name Oncidium Heaven Scent ‘Sweet Baby’.

BACKGROUND OF THE INVENTION

Oncidium comprises a genus of approximately 400 species from the tropical and subtropical Americas. Oncidium orchids are primarily epiphytic or lithophytic with a minor portion being terrestrial. All species exhibit sympodial growth and vary greatly in other morphology and size.

Oncidium breeding is typically done from sexual methods. Asexual propagation of Oncidiinae is often done in aseptic tissue culture from apical or axillary shoots.

The new cultivar was discovered by the Inventor within the progeny of a cross made by the Inventor on Sep. 3, 2001. The Inventor selected Oncidium Heaven

Scent ‘Sweet Baby’ as a single plant from a population of over 50 plants grown by James McCully in Hilo, Hawaii, a company owned by the Inventor. Oncidium Heaven Scent ‘Sweet Baby’ was submitted by the Inventor to a commercial tissue culture laboratory in Bangkok, Thailand on Jun. 7, 2005, for propagation through aseptic tissue culture technique. A quantity was produced for evaluation and has demonstrated that the unique combination of characteristics as herein disclosed for the new cultivar are firmly fixed and are retained through successive generations of asexual reproduction.

Other seedlings from the same cross that was used to produce Oncidium Heaven Scent ‘Sweet Baby’ have been commercially available from others. The characteristics of Oncidium Heaven Scent ‘Sweet Baby’ are clearly distinguishable from the characteristics of those other plants. Those other plants were sold by James McCully without specific epithet to individuals and other nurseries. To the Inventor's knowledge, the only other named clone of the cross is Oncidium Heaven Scent ‘Sweet Pea’ and is owned by the Inventor. Plants of the grex Oncidium Heaven Scent are sold as plants of the grex without specific epithet.

BRIEF SUMMARY OF THE INVENTION

The following traits have been repeatedly observed and are determined to be basic characteristics of the new cultivar which in combination distinguish this Oncidium orchid as a new and distinct cultivar:

Flowers of the new cultivar are burgundy in color on the sepals and petals. The labellum is dark pink with a burgundy isthmus fading to a lighter pink color with irregular white spotting around the bottom edge. The callus of the lip swells into small tubercles, 1 to 2 mm long sometimes with white tips. The column is burgundy on the upper surface and white on the low surface, measuring 0.6 cm long by 0.6 cm wide. The column wings are narrowly lamellate. The anther cap is white with irregular burgundy spots overlaying the tip. The natural horizontal spread is 3.7 centimeters (cm); natural vertical spread is 4.4 cm; dorsal sepal width 0.7 cm; dorsal sepal length 1.7 cm; petal width 0.7 cm; petal length 1.7 cm; lateral sepal width 0.6 cm; lateral sepal length 2.3 cm;

labellum width 2.0 cm; labellum length 2.3 cm. There are around 25-35 flowers on each spike on the first bloom depending on the plant's environment.

Inflorescence is a basal panicle, approximately 45 to 72 cm tall with a diameter of 3mm. The panicle is dark green in color (Pantone® 378U) and typically has 5 to 9 alternate lateral branches. The branching of the panicle starts at leaf level and the branches vary in length, typically 3 to 5 cm long and 1.5 mm in diameter, shortening towards the top. There are typically 3 to 5 flowers on each of the lateral branches. The size of the inflorescence is appropriate to the overall size of the plant and typical pot size for this cultivar.

There are generally four to five leaves on the mature psuedobulb, two or three from the apex and two from the base of the psuedobulb. The apical leaves measure 25 to 43 cm in length and are 3.5 to 4 cm wide. The leaves from the base of the pseudobulb measure up to 30 cm and up to 4 cm wide. The shape of the leaf is lanceolate acuminate and semi-conduplicate at the base. The leaf is glabrous, flexible and striated. The upper surface of the leaf is channeled midrib, creating a keel midrib on the underside of the leaf. The margins are entire and smooth. Both upper and lower surfaces are green in color (Pantone® 574UP). The texture and substance is smooth, waxy and thin. Axillary leaves, or bracts, are sometimes present below the leaves at the base of the psuedobulb. When present, there is usually one on either side of the pseudobulb and measure 7 to 13 cm long and typically 1.5 cm wide. Other than the size difference of the axillary leaves as compared to the apical leaves, the axillary leaves are identical to the apical leaves in shape, texture, color, margin, apex and base descriptors. The plants of Oncidium Heaven Scent ‘Sweet Baby’ grow to maturity and flower in approximately 18 months.

Plants of the new cultivar have not been observed under all possible environmental conditions. The phenotype may vary significantly with variations in the environment such as temperature, light intensity, and day length, without however any change in genotype.

Plants of the new cultivar differ primarily from the plants of the parent cultivars in flower color, fragrance, panicle size, rate of growth and speed to maturation. Perhaps the closest commercial comparison to the new cultivar can be made to seedling-derived Oncidium orchids which are genetically heterogeneous, and typically lack uniformity in growth, vigor, plant habit, and flower quality. Since this reference point has inconsistent characteristics, a direct comparison for Oncidium Heaven Scent ‘Sweet Baby’ is not available. The new cultivar is a single genotype asexually propagated via tissue culture; thus, its combined horticultural characteristics listed above are uniform and predictable.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings show the colors of the new variety as nearly true as possible with an illustration of this type. In the drawings:

FIG. 1 is a view of the entire plant to reveal the growth habit and general characteristics with its flowers, which is typical of this new variety.

FIG. 2 is a close up view of the flower to show its shape.

DETAILED BOTANICAL DESCRIPTION

All color references are measured against the Pantone® Color System. Colors and numerical measurements are approximate as plant growth and development depends on environmental conditions and cultural practices such as light level, temperature, water quality, fertilization formula and rate, among others, without, however, any variance in genotype.

Plants used for this description are 1 to 2 years in vivo and grown in 3.3 inch, square black plastic pots, grown in a poly-carbonate covered greenhouse in Hilo, Hawaii, where day temperatures range from 72 to 88 degrees and night temperatures range from 56 to 72 degrees Fahrenheit. Light levels are between 1500 to 2500 foot candles. This information reflects the annual variations for the area.

-   Botanical classification: Oncidium Heaven Scent ‘Sweet Baby’ -   Parentage: Seedling selected from the cross of the following:     -   -   Seed Parent.—Oncidium Ruffles.         -   Pollen Parent.—Oncidium Sharry Baby. -   Propagation:     -   -   Type.—Asexual propagation by aseptic tissue culture through             axillary shoot initiation.         -   Time to initiate and elongate roots in-vivo.—About 45 days.         -   Time to produce fully rooted young plant.—About 180 days. -   Root Description: Velamen covered roots, approximately 9 cm in     length and1.5 mm in diameter, white in color when dry, Pantone®     7527U with a greenish yellow growing tip, Pantone® 379U. When the     root is wet, it takes on a light green color, Pantone® 372UP.     Although the exact shades of white and yellow/green vary greatly     with minimal changes in environmental conditions, these are the     colors that have been noted on the observed plant in the area as     described. -   Plant description: Under appropriate growing conditions, plants of     the new cultivar attain a mature size of about 43 cm in height (top     of leaf plane) and each leaf is about 4 cm in width. -   Foliage description:     -   -   Arrangement.—Sympodial growth habit.         -   Quantity of leaves per growth.—Each sympodial growth has             shown four to five leaves, two to three on the apex of the             pseudobulb and two from the axis at the base of the             pseudobulb.         -   Leaf length.—The larger apical leaves measure up to 43 cm in             length. The axillary leaves at the base of the psuedobulb             may be as short as to appear to be a bract and as long as 13             cm.         -   Leaf width.—The width of the largest leaf measures up to 4             cm.         -   Leaf shape.—The shape is lanceolate, apex acuminate, texture             and substance is smooth, waxy and thin. The leaf margin is             entire and smooth. Leaf base is semi-conduplicate.         -   Pseudobulb shape.—The pseudobulb shape is a laterally             compressed ovoid.         -   Pseudobulb length.—The pseudobulb is approximately 7 to 12             cm long.         -   Psuedobulb width.—The pseudobulb is approximately 3.5 to 6.5             cm wide and 1.5 to 2.0 cm thick.         -   Foliage color.—Under the described growing conditions, the             foliage color on both sides of the leaves is similar to             Pantone® 371UP (green) of the Pantone® Color System. There             is no vein color distinction. The pseudobulb can vary from             Pantone® 371UP (green) to Pantone® 377UP (green). -   Flower/inflorescence description:     -   -   Description.—Panicle, approximately 45 cm in length on a             first bloom plant with 5 to 9 alternate side branches, each             having 3 to 5 flowers. The branches start at leaf level and             become shorter near the panicle apex. Pedicels are 2.5 to 3             cm in length and 1.5 mm in diameter. The base of the pedicel             is pink, Panton 189UP and the apex is burgundy, Pantone®             188UP. The size of the inflorescence is appropriate to the             overall size of the plant and typical pot size for this             cultivar.         -   Dimensions.—Flower dimensions are: natural horizontal spread             is 3.7 cm; natural vertical spread is 4.4 cm; dorsal sepal             width is 0.7 cm; sepal length is 1.7 cm; petal width is 0.7             cm; petal length is 1.7 cm; lateral sepal width is 0.6 cm;             lateral sepal length is 2.3 cm; labellum width is 2.0 cm;             labellum length is 2.3 cm. The flower consists of 3 sepals             and 3 petals; one of the petals is modified and referred to             as the labellum and/or lip. The tepal (sepals and petals             together excluding the lip) shape is lanceolate with an             acuminate and reflexed apex and fused together at the base.             The tepal margin is sinuate and the texture is waxy. The             labellum is bilobed, the basal part of these lobes velvety             and somewhat erect. The labellum narrows mesially and is             very waxy and shiny through this area. Apically, the             labellum fans out into a laterally compressed ovoid with a             velvety texture and smooth margins other than three notches             along the bottom. The callus is ball shaped and prominent             with spur-like extensions protruding outwards.         -   Coloration.—The dominant flower color appearing on both             upper and lower surfaces of the tepals is Pantone® 7428C             (Burgundy). The upper surface of the lip is Pantone® 7433PC             (Dark pink), with the isthmus of the lip having a darker             patch of burgundy, Pantone® 7435PC. Towards the bottom of             the lip, the color fades into a lighter pink, Pantone® 7431             PC, sometimes with irregular white spotting (Pantone®             7527C). The lower surface of the lip is pink, Pantone®             239UP, with two grey spots,

Pantone® 7529UP, located on either side of the mesial part of the lip and measuring 6 mm long by 2 mm wide. The column is burgundy, Pantone® 7428C, on the upper surface and the underside of the column is white (Pantone® 7527C). The anther cap is white, Pantone® 7527C, with irregular burgundy (Pantone® 7428C) markings on the tip. The pollinia are completely concealed by the anther cap, and if it is removed the pollinia may be extracted. All surfaces of the pollinia are yellowish orange, Pantone® 130C, but can range in shades of yellow as the plant ages.

-   Quantity of flowers and time to flower:     -   -   Flower longevity.—The flowers can last up to 7 weeks on the             plant with good environmental conditions. A first bloom             plant will produce 25 to 35 flowers on each spike depending             on environmental conditions.         -   Natural flowering season.—The plant has exhibited free             flowering although the dominant flowering season is             fall/winter. -   Fragrance: A strong, sweet fragrance has been detected by the     Inventor. -   Reproductive organs: The stamens, style and stigmas are fused into a     single short structure called the column, possessing one terminal     anther with pollen grains united to form pollinia, which are covered     by an anther cap. The stigma is located under the column behind the     pollinia. The ovary is inferior, with three carpels being present.     -   -   Column. —The column is erect with narrowly lamellate wings             on either side of the stigma, 6 millimeters (mm) wide by 6             mm long.         -   Pollinia.—Two oval masses of pollen are present, about 1 mm             in diameter.         -   Stigma.—The stigma is concave, round, with a high gloss, and             sticky. It is gelatinous and projects a cloudy grey color,             Pantone® 7529 UP.         -   Ovary.—The ovary is about 2.5 cm long by 1.5 mm in diameter             and burgundy in color, Pantone® 188UP.         -   Seed.—Seed production has not been observed. -   Disease resistance: Resistance or susceptibility to known pathogens     and pests of Oncidium has not been observed on plants grown under     commercial production conditions. -   General observations: Plants of Oncidium Heaven Scent ‘Sweet Baby’     produce a pleasing arrangement of many burgundy/pink flowers on a     panicle that is desirable in size for the size of the plant. The     flowers are heavily scented, long lasting and nicely shaped. The     plant normally produces two spikes per bulb, typically producing six     spikes on a mature plant, and grows quickly to sexual maturity. 

1. A new and distinct variety of orchid plant named Oncidium Heaven Scent ‘Sweet Baby’, substantially as illustrated and described herein. 